- Helps stop a cold early* - Clinically Proven** - Forms a shielding layer to help trap cold viruses. - Suitable for use during pregnancy and from 1 Year Lemsip First Action™ contains Carragelose® and kappa-Carrageenan which is clinically proven to help shorten the duration of cold and flu-like symptoms by up to 2 days, when used at 1st signs. The spray forms a shielding layer on the surface of the nasal mucosa. When used at first signs it helps trap cold viruses so they cannot multiply further and infect healthy cells. Lemsip First Action™ helps STOP a cold early*. Both the common cold and flu-like illness are spread by inhaling airborne viruses after an infected individual sneezes or coughs. When cold viruses enter the nose, they attach to the nasal lining, where they multiply and spread, triggering the body\'s immune response. This results in symptoms such as sore throat, stuffy or runny nose, fever, headache or coughing. As the viruses continue to multiply and spread, cold symptoms develop further. *Helps shorten cold symptoms by up to 2 days when used at 1st signs. **Lemsip First Action contains Carragelose® and kappa-Carrageenan which is clinically proven to help shorten the duration of cold and flu-like symptoms by up to 2 days, when used at 1st signs. Always read the instructions. RB-M-51904